@inproceedings{lei2021less,
  title={Less is More: ClipBERT for Video-and-Language Learningvia Sparse Sampling},
  author={Lei, Jie and Li, Linjie and Zhou, Luowei and Gan, Zhe and Berg, Tamara L. and Bansal, Mohit and Liu, Jingjing},
  booktitle={CVPR},
  year={2021}
}